Question

The angles of triangle is x-40, x-20 ,and x-15 find the value of x

Answer 1

Sum of a Triangle is 180°

So,

x - 40 + x - 20 + x -15 = 180°

3x - 75° = 180°

3x = 180° + 75°

3x = 225°

x = 225°/3

x = 75°

Substitution Of values,

∠1 = x - 40

= 75 - 40 = 35°

∠2 = x - 20

= 75 - 20 = 55°

∠3 = x - 15

= 75 - 15 = 60°

Hope it Helps !

Answer 2

Answer:

I hope it is helpful..........................